Improvement in grain-reducing apparatus



J. L. WILSON. GRAINJREDUCING APPARATUS.

No. 192,208,` i `Patented June 19.1817.

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UNITED STATES PATENT OEEIOE;

JAMES L. WILSON, OE `VwOODsTOt-ax, ONTARIO, CANADA, ASSIGNOE To JOHNaEOanEST, OE SAME PLACE.

IMPROVEMENT iN-GRAIN -REDUCING APPARATps.

Specification forming part of Letters Patent No. i92,2`08, dated une 19. `1877- Vapplication filed May 12,1877.

To all 'whom it may concer-fn: y

Be it known that I, JAMES L. WILSON, of Woodstock, in the Province of Ontario and Dominion of Canada, have invented a newv and Improved Grain-Grushing'Machine, ofI which the following is a specification:

In the accompanying drawing, Figure Vl represents a vertical longitudinal section of my improved grain-crushing machine, taken Aon line :r a', Fig. 2; Fig. 2, a vertical transverse section of the same; and Fig. 3, a detail side view of the mechanism for working the agitators.

Similar letters of reference indicate corre sponding parts.

This invention relates to an improved machine for converting the hulled kernels of oats or other grain into a coarse meal. This is ordinarily done by crushing the grain between rollers or grinding it with millstones, and

afterward screening it into diii'erent grades of meal. The objection to these methods of crushing is that a largepercentage of the grain is reduced to a fine iour, which of much less value than the coarse meal.

The object of this invention is to make a meal of superior quality and to avoid the loss of any part of grain in iiour. This is accomplished by means of a rapidly-revolving cylinder divided into several Sections, the faces` of which have numerous parallel grooves from the hollow interior space to the circumference, which cause the grain to pass along the grooves, and to be presented endwise to reciprocating knives, the grain being retained for their action by guards in the holes or openings. The grain is fed to the interior of the cylinder in suitable manner, and from the same to the exit grooves and openings, the exit-passages having laterally-moving agitators to prevent theclogging of the grain in the grooves. l

In the drawing, A representsacylinder that is rapidlyrevolved by a hollow'shaft, B, turning on suitable standards, the grain being fed from a hopperto the hollow Shaft B,and along the same, by a revolving feed-screw, G, or in any other approved manner, to an interior drum, A', of the cylinder, and through openings-a of the'same into a hollow space around the drum.r The outer solid portion of the cylinder is divided into sections D, which com municate Vfrom the hollow space around the drum A with the circumference of the cylinder by channels b, that diminish in width to the exit slots or openings, which are about the size of the grain, so as to allow thc free outward passage of the same. The faces of the Sections D are provided with parelllel grooves b, as shown in Fig. 2, along which the grain passes. Y

E E are the knives, that are mounted into pivoted frames E1, extending sidewise along the cylinder to the circumference ofthe same, the knives being pressed by spiral springs d on the cylinder, so as to pass close over the exit-holes of the channelsoi passages b. In front of thezknives E are arranged guards E2, which are placed at a short distance from the exit-holes, to prevent the grain from leaving the cylinder-and exposing it to the cutting' knives. The knives` Eare operated by means of radial pivot-arms e, which are. brought, during therevolutions ofthe cylinder, in conarmsf being connected by links e" with the pivot-frames E1 of the knives, so as to carry the latter forward to cut the grain.

The pivot-frames E1 bear, by lugs f, against spring-rods g, which operate, by connectingrods g', the agitatOrsG, that are pivoted to `the inner ends of the channels b, to the face opposite the grooved faces of the same. The forward motion imparted to the knife-frames El produces also the moving of the agitators across the channels by the contact of the lugs f with the spring-rods, asshown in Fig. 3, the spring-rods returning the agitators, together with the knife-frames, by the action'of spiral springs hy as soon as the radial arms c have passed over the fixed plate F. The agitators serve to keep the passages free in case they shouldget lled up too much, and admit the grain to pass freely along the grooves.

The machine requires less power to do a given amount of work than stones, and makes a better qualit-y of meal with much less percentage of loss.

tact with a fixed stop or plate, F, said pivot- Having thus describedv my invention, I

claim as new and desire to secure by Lettersv i grain to be cut is fed from the interior, and

which is provided with grooved and tapering exit-channels, with the intermittently-sliding and spring-acted knives and guards, guided along the circumference of the cylinder, and with a fixed actuating stop-plate, substantially in the manner and for the purpose set forth.

2. The combination of the cylinder A, having grooved and tapering exit-channels for conducting the grain from the interior to the circumference, with the cutting-knives E E and guards E2 E2, attached to pivoted frames E1, and operated by pivot-arms e and xed stop-plate F, substantially as specified.

3. The combination of the 4exit-channels of the cylinder with pivoted and laterally-moving agitators G, to prevent clogging of channels, substantially asset forth.

4. The combination of the cylinder A, having tapering; and grooved exit-channels b, with the pivoted agitators G, connecting-rods g', spring-rods g, spring-acted knife-frames E2, links cf, pivot-arms e, and stop-plate F,to Work agitators and knives by the contact with stopplate, substantially in the manner and for the purpose described.

JAMES L. WILSON.

[Witnesses:

ROBERTr STARK, H. J. MCKAY. 

